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Stainless steel flange ball valve

A flanged ball valve, stainless steel technology, applied in the valve details, valve device, valve shell structure, etc., to achieve low production cost, self-cleaning sealing surface, good sealing effect

Inactive Publication Date: 2019-06-04
李伟彦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, even if the seat ring is separated from the valve body, it will cause slippage at the part that supports the valve body

Method used

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  • Stainless steel flange ball valve
  • Stainless steel flange ball valve

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Embodiment Construction

[0008] A stainless steel flanged ball valve, the ball valve includes a valve body 1, a valve seat 2, a ball 3, a bolt 4, a valve stem packing 5, a valve stem 6, a packing gland 7, a sealing washer 8, a nut 9 and a handle 10, The handle 10 is fixed on the packing gland 7 through the nut 9 and the sealing washer 8, the valve seat 2 is fixedly connected to the valve body 1, the ball 3 is arranged in the valve seat 2, and the valve seat 2 is fixed on the valve body 1. The valve stem 6 is vertically arranged in the valve body 1, the valve stem 6 is provided with a valve stem packing 5 outside, and the described packing gland 7 is fixedly connected to the valve body 1 by bolts 4. The valve stem packing 5 is wear-resistant ceramic particle.

[0009] The above embodiments are only used to illustrate the present invention rather than limit the technical scheme described in the present invention; therefore, although the present description has described the present invention in detail w...

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PUM

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Abstract

The invention relates to a stainless steel flange ball valve. The ball valve comprises a valve body, a valve seat, a ball body, a bolt, a valve rod packing, a valve rod, a packing gland, a sealing gasket, a nut and a handle, the handle is fixedly arranged on the packing gland through the nut and the sealing gasket, the valve seat is fixedly connected to the valve body, the ball body is arranged inthe valve seat, the valve rod is vertically arranged in the valve body, the valve rod packing is arranged on the outer side of the valve rod, the packing gland is fixedly connected to the valve bodythrough the bolt, and the packing is wear-resistant ceramic particles. The stainless steel flange ball valve has the advantages that the structure is simple, the sealing performance is good, the sealing surface is self-cleaned, opening and closing are convenient, the friction is small, the opening torque is small, the operation is stable, the production cost is low, and the service life is long.

Description

technical field [0001] The invention relates to a pipeline valve, in particular to a stainless steel flanged ball valve. Background technique [0002] A ball valve that closes the sliding gap around the valve body by pressing the seat ring against the valve body (ball) inserted into the valve chamber, and cuts off the communication between the valve chamber and the ball through the above-mentioned sliding gap (called a metal contact ball valve) Among them, when opening and closing the valve portion, the seat ring is separated from the valve body to reduce the operating torque of the valve (for example, refer to Patent Document 1). In the ball valve disclosed in Patent Document 1, the valve seat ring has a piston structure, and the valve body is pressed to and separated from the valve body by fluid pressure. Two pressure chambers that apply fluid pressure to the seat ring in opposite directions are formed on the outer periphery of the seat ring. When fluid pressure is intro...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/08F16K27/12
Inventor 李伟彦
Owner 李伟彦